Chapter 13- Meiosis

________ is when each cell has three copies of that chromosome.

________ is a tight side- by- side pairing of homologous chromosomes along their corresponding regions.

The ________ is called crossing over.

________ is when the homologs or sister chromatids fail to separate, or disjoin.

________ is when there is only one copy of one of the chromosomes.

________ use the term allele to denote a particular version of a gene.

________ means that they have three or more of each type of chromosome in each cell.

________ that have too many or too few chromosomes of a particular type are said to be aneuploid.

Any chromosomes other than sex chromosomes are called ________.

________ from different homologs are referred to as non- sister ________.

The ________ are held together by a network of proteins called the synaptonemal complex.

________, which are diploid precursors to eggs, enter meiosis I during embryonic development and arrest in prophase I until the female reaches sexual maturity.

The ________ and Y chromosomes are called sex chromosomes and are associated with an individuals sex.

Offspring are not doomed to inherit ________.

A(n) ________ is a segment of DNA, found at a specific place on a chromosome, that influences a trait.

________ is the production of offspring through the generation and fusion of gametes.

In animals, some or all of the ________ cells go on to form egg cells or sperm cells in the process of gametogenesis.

Insects, humans, trees, and other organisms that have two versions (homologs) of each type of chromosome are called ________ " (double- form)

________ is the sequence of events that occurs over the life of an individual, from fertilization to the production of offspring.

The ________ indicates the number of distinct types of chromosomes present.

Crossing over is a(n) ________.

________ is any mechanism of producing offspring that does not involve the production and fusion of gametes.